Motor-lubricator.



W. P. SGHNLAND, JR.

Patented Mar. 24, 1914 COLUMBIA PLANoaR/wu C0.Y wAsmNri'rvNv D. c.

WILLIAM F. scHNLAND, JR., or MANCHESTER, NEW HAMPSHIRE.

MOTOR-LUBRICATOR.

To all whom t may concern Be it known that I, WILLIAM F. SCHN- LAND,Jr., a citizen of the United States, and a resident of Manchester, inthe county of Hillsboro and State of New Hampshire, have inventedcertain new and useful linprovements in Motor-Lubricators, of which thefollowing is a specilication.

This invention relates to means for lubricating the working parts of amotor or engine, and refers particularly to the lubricating of internalcombustion motors.

The object of the invention is to provide improved means whereby theworking parts of the motor or engine will be automatically, constantlyand equally furnished with a supply of lubricating oil, said supplybeing effected, in motors having a plurality of cylinders, by a currentor draft of air. alternately forced in opposite directions by themotions of one or more pairs of reciprocating pistons, and in singlecylinder engines by the same force alternately applied by the downwardthrow of the piston and com-. pressed air formed thereby.

To these ends, the' invention consists in providing a crank case with anoil well or pocket, and a bailie plate or partition eX- tending nearlyto the bottom of such well or pocket, the location of said baille platein multiple cylinder motors being such that two pistons operating toalternately compress, and reduce pressure of the' air, on opposite sidesof the baffle plate will cause the air to take up oil from a suitablequantity in the well or pocket and spray the same into the chambersinvwhich the cranks rotate, and upwardly to the cylinders; the baffleplate or partition in single-cylinder engines being located between thecrankcase and a subsidiary air-chamber, the piston in its downward throwcompressing the air in the subsidiary chamber, and the compressed airalternately returning, sprays the oil, along the lines of leastresistance, to the working parts.

Of the accompanying drawings, 1 represents a vertical longitudinalthrough sufficient of the parts of a multiple cylinder, internalcombustion engine of suitable type to enable my present invention to beunderstood. Fig. 2 represents a vertical transverse section through thesame. Fig. 3 represents a sullicient portieri of a Figure sectionSpecification of Letters Patent. Application filed July 31, 1913.

plurality of cylinders,

single cylinder engine, in vertical cross-sec- Patented Mar. 24, 1914.Serial No. 782,171.

tion, to illustrate the adaptation of my invention thereto.

Similar reference characters indica-te the same or similar parts in allthe views.

VThe cylinders 10, pistons 11, pitmen 12 and cranks 13 are, or may be,of any well known type. For present purposes, it is not necessary toillustrate or describe in detail the operation of the pistons and valvemechanism.

The crank shaft is shown as mounted in end bearings 14E, and in engineshaving a in intermediate bearings 15, the latter being supported bytransverse webs 16 of the crank shaft casing. The lower portion 17 ofthe crank shaft casing is formed as a pan with two depressions to formpockets or wells 18. This lower portion 17 is preferably aseparateportion of the crank casing, and is so shown, although I do notlimitmyself to making it exactly as shown. There being four cylindersincluded in the particular type of engine illustrated in Fig. 1, thereare two pockets or wells 18, but if there were but two of the cylindersthen the crank easing would not need to have but one pocket or well; andthis latter statement applies also to the one cylinder engine shown inFig. 3.

In Figs. 1 and 2 the supporting web 16 that is located between thepitmen 12 of each pair of cylinders is formed or provided with an.eXtension19 which constitutes a baffle plate. Its lower edge extendssufliciently close to the bottom of the pocket 18 as to be immersed in aquantity of lubricating oil, that said pocket is capable of containing,so that any tendency of air to pass the baliie platev 19 will be obligedto reduce the level of the oil on one side of the baiie plate and inescaping under the lower edge of said baille plate carry with it a sprayof oil upwardly into the chamber where the lesser air pressure exists.

uIn operation of the engine shown in Figs. 1 and 2, each piston as itreciprocates will alternately increase and reduce the pressure of air inthe space below it, said space not only including a portion of thecylinder, but also the portion of the space in the crank casing that isbelow it. With 'the particular type of engine illustrated in Fig. 1, thetwo end pistons of the series move in one direction, while the pistonsof the two middle cylinders move in the opposite direction. Therefore,the crank casing is divided into three chambers, one under each endpiston, and one under the two middle pistons. As the pistonsreciprocate, the oil in the two wells or pockets is caused to bealternately sprayed in different directions by the air that is forcedunder the baffle plates.

In my invention as adapted to a singlecylinder engine, shown in Fig. 3,a portion of the crank-casing 17l itself may be made to form thepartition or baffle plate between the crank-case and thesubsidiary-chamber A, and the lower portion of the case-chamber will bepositioned so as to form the oil pocket or well 18 immediately under thebaffle-plate. In operation in this adaptation, the air in crank-case isforced on the downward-throw of the piston into the subsidiary chamberto a compression iiXed by the chambers size, and on the up-throw of thepiston, such compression, aided by the vacuum in the crank-case, forcesthe air in return through the well, spraying the oil upwardly in thecrank-case.

It will now be seen that I have provided an exceedingly simple meanswhereby the working parts of the engine or motor may be kept suitablysupplied with lubricant, without wasting of the latter, and without riskof interfering with any valve mechanism, or members of the ignitingdevices; and whereby the waste of oil running through the exhaust, whenthe crank-case stands at an inclination from the horizontal plane andtwo of the cylinders are receiving practically all the remainder of thelubricant, will be overcome, thus emphasizing the efficiency of myinvention in all possible operative positions of the motor.

Any suitable means may be employed for either supplying oil regularly orat intervals to the pockets or wells, or for removing any sedimenttherefrom if desired I claim 1. An engine having a plurality ofcylinders and pistons and having a crank case provided with an oil wellor pocket, and a baflie plate extending into said well or pocket wherebythe reciprocations of the pistons will cause the oil in the well orpocket to be alternately sprayed in dilierent directions by air forcedunder the baille plate.

2. An engine having two pairs of cylinders and pistons and a crank shaftfor the pitmen of all of said cylinders, a crank case having two oilwells or pockets, and bale plates extending into said wells or pockets.

3. An engine having a plurality of cylinders and pistons and having acrank case provided with an oil well or pocket, a web extendingtransversely of the crank shaft between the pistons, and an extensionfrom said web to form a baille plate, the lower edge of said extensionor plate terminating a little above the bottom of the well or pocketwhereby oil in said well or pocket will be displaced or forced from sideto side by liuctuations of air pressure under the influence of thereciprocating` pistons.

4;. An engine having a. single cylinder and piston, and having acrank-case and an airchamber connected with said crank-case, sa idcrank-case and air-chamber being provided with an oil well or pocket,and a partition forming a baliie plate between said case and chamber,whereby the movements of the piston will cause the oil in the well orpocket to be alternately forced into said chamber, and sprayed into saidcrank-case by the air forced under the bathe-plate.

5. An engine having a single cylinder and piston, a crank-shaft, acrank-case and connecting air-chamber provided with an oil well orpocket, and a baille-plate extending into said well or pocket, andforming a partition between said case and said chamber.

In testimony whereof I have aiiixed my signature in the presence of twowitnesses.

TILLIAM F. SCI'IONLAND, Jn.

Witnesses J. B. CAVANAUGH, BLANCHE Momssn'r'rn.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents.

Washington, D. C.

